SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '144') AND (category.subclass = '12') ORDER BY patent DESC, type |
Total of 1 patents found where: Class is '144'; Subclass is '12';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1884 | ||||||
U | 297,865 | April 29, 1884 | Machine for Making Insulator Pins Machine to turn wooden insulator pins |
SNEE, William |
Pin | 1/2 to Milton A. Walton |
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